SANYO LC89080Q, LC89080 Datasheet
Ordering number : EN*4030A
D3095HA (OT)/5272TS No. 4030-1/8
Overview
The LC89080 and LC89080Q are high-speed currentoutput D/A converters. They feature 8-bit resolution,
provide 3 channels on a single chip, and can be used in
demodulators for high-speed signals such as video signals.
Features
• Resolution: 8 bits
• D/A converters: Three current-output D/A converter
channels on a single chip
• Maximum conversion speed: 30 MSPS
• Error: ±1.0 LSB (maximum)
• Power supply: +5 V single-voltage power supply
• Power dissipation: 330 mW
• Inputs: TTL compatible
Package Dimensions
unit: mm
3025B-DIP42S
unit: mm
3052A-QFP48A
Preliminary
SANYO: DIP42S
[LC89080]
SANYO: QFP48A
[LC89080Q]
LC89080, 89080Q
SANYO Electric Co.,Ltd. Semiconductor Bussiness Headquarters
TOKYO OFFICE Tokyo Bldg., 1-10, 1 Chome, Ueno, Taito-ku, TOKYO, 110-8534 JAPAN
Video Signal 3-Channel 8-Bit D/A Converter
CMOS LSI
Specifications
Absolute Maximum Ratings at Ta = 25°C, VSS= 0 V
Allowable Operating Ranges
Electrical Characteristics at Ta = 25°C, VDD= 5.0 V, V
REF
IN = 1.0 V, R
REF
= 300 Ω, RO= 75 Ω
No. 4030-2/8
LC89080, 89080Q
Parameter Symbol Conditions Ratings Unit
Maximum supply voltage V
DD
max –0.3 to +7.0 V
Input voltage V
IN
–0.3 to VDD+ 0.3 V
Operating temperature Topr –30 to +75 °C
Storage temperature Tstg –40 to +125 °C
Parameter Symbol Conditions min typ max Unit
Supply voltage V
DD
4.5 5.0 5.5 V
Reference voltage input V
REF
IN 1.0 2.0 V
Output resistance R
O
75 Ω
Input high-level voltage V
IH
2.2 VDD+ 0.3 V
Input low-level voltage V
IL
–0.3 +0.8 V
Phase compensation capacitance Ccomp 1 µF
Parameter Symbol Conditions min typ max Unit
Resolution RES 8 Bits
Maximum conversion speed Fs max 30 MSPS
Power dissipation Pd Fs = 30 MSPS 330 400 mW
Zero-scale output voltage Vzero For each channel –15 0 +15 mV
Full-scale output voltage Vfull For each channel 0.92 1.00 1.08 V
Full-scale voltage ratio FSR 0 4 8 %
Linearity error I.L. DC precision ±1.0 LSB
Differential linearity error D.L. DC precision ±0.5 LSB
Reference voltage output V
REF
OUT 0.99 1.00 1.01 V
Pin Assignment LC89080 (DIP42S)
No. 4030-3/8
LC89080, 89080Q
Pin No. Symbol Description
1 DV
DD
Digital system power supply (+5 V)
2 DA1 Channel A digital input (MSB)
3 to 8 DA2 to DA7 Channel A digital input
9 DA8 Channel A digital input (LSB)
10 DB1 Channel B digital input (MSB)
11 to 16 DB2 to DB7 Channel B digital input
17 DB8 Channel B digital input (LSB)
18 DC1 Channel C digital input (MSB)
19 to 24 DC2 to DC7 Channel C digital input
25 DC8 Channel C digital input (LSB)
26 CLK Clock input
27 DV
DD
Digital system power supply (+5 V)
28 DGND Digital system ground (0 V)
29 ICOB Channel C negative output. Connect to A.GND through an output resistor R
O
(usually 75 Ω).
30 ICO Channel C positive output. Connect to A.GND through an output resistor R
O
(usually 75 Ω).
31 AV
DD
Analog system power supply (+5 V)
32 IBOB Channel B negative output. Connect to A.GND through an output resistor R
O
(usually 75 Ω).
33 IBO Channel B positive output. Connect to A.GND through an output resistor R
O
(usually 75 Ω).
34 AGND Analog system ground (0 V)
35 IAOB Channel A negative output. Connect to A.GND through an output resistor R
O
(usually 75 Ω).
36 IAO Channel A positive output. Connect to A.GND through an output resistor R
O
(usually 75 Ω).
37 AV
DD
Analog system power supply (+5 V)
38 COMP Phase compensation capacitor. Connect a 1 µF capacitor between this pin and ground.
39 I
REF
Reference current output. Connect a resistor that is 4 times the output resistance ROto this pin.
40 V
REF
IN Reference voltage input. This input pin sets the analog output dynamic range.
41 V
REF
OUT
Reference voltage output. The output voltage is set to 0.2 times V
DD
by a resistor divider.
When V
DD
is 5.0 V, a 1.0 V reference voltage can be acquired from pin 40.
42 DGND Digital system ground (0 V)
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